Micrel, Inc.
MICRF002/RF022
Absolute Maximum Ratings(1)
Operating Ratings(2)
Supply Voltage (VDDRF, VDDBB)........................................+7V
Input/Output Voltage (VI/O). ....................VSS–0.3 to VDD+0.3
Junction Temperature (TJ) .......................................+150°C
Storage Temperature (Ts) ...........................–65°C to 150°C
Lead Temperature (soldering, 10 sec.)...................... 260°C
ESD Rating(3)
Supply Voltage (VDDRF, VDDBB).................... +4.75V to +5.5V
RF Frequency Range.............................. 300MHz to 440Hz
Data Duty-Cycle................................................20% to 80%
Reference Oscillator Input Range.............. 0.1VPP to 1.5VPP
Ambient Temperature (TA) ..........................–40°C to +85°C
Electrical Characteristics(4)
VDDRF = VDDBB = VDD where +4.75V ≤ VDD ≤ 5.5V, VSS = 0V; CAGC = 4.7µF, CTH = 100nF; SEL0 = SEL1 = VSS; fixed mode
(SWEN = VSS); fREFOSC = 4.8970MHz (equivalent to fRF = 315MHz); data-rate = 1kbps (Manchester encoded). TA = 25°C,
bold values indicate –40°C ≤ TA ≤ +85°C; current flow into device pins is positive; unless noted.
Symbol
Parameter
Condition
Min
Typ
2.2
Max
3.2
Units
mA
µA
IOP
Operating Current
continuous operation, fRF = 315MHz
polled with 10:1 duty cycle, fRF = 315MHz
continuous operation, fRF = 433.92MHz
polled with 10:1 duty cycle, fRF = 433.92MHz
VSHUT = VDD
220
3.5
mA
µA
350
0.9
ISTBY
Standby Current
µA
RF Section, IF Section
Receiver Sensitivity (Note 4
)
fRF = 315MHz
fRF = 433.92MHz
Note 6
–97
–95
0.86
0.43
–20
30
dBm
dBm
MHz
MHz
dBm
µVRMS
fIF
IF Center Frequency
IF Bandwidth
fBW
Note 6
Maximum Receiver Input
Spurious Reverse Isolation
AGC Attack to Decay Ratio
AGC Leakage Current
RSC = 50Ω
ANT pin, RSC = 50Ω, Note 5
tATTACK ÷ tDECAY
TA = +85°C
0.1
±100
nA
Reference Oscillator
ZREFOSC
Reference Oscillator Input
Impedance
Note 8
290
5.2
kΩ
Reference Oscillator Source
Current
µA
Demodulator
ZCTH
CTH Source Impedance
Note 7
145
kΩ
IZCTH(leak)
CTH Leakage Current
TA = +85°C
±100
nA
Demodulator Filter Bandwidth
Sweep Mode
(SWEN = VDD or OPEN)
Note 6
VSEL0 = VDD. VSEL1 = VDD
V SEL0 = VSS. V SEL1 = VDD
V SEL0 = VDD. V SEL1 = VSS
4000
2000
1000
500
Hz
Hz
Hz
Hz
V SEL0 = VSS. V SEL1 = VSS
Demodulator Filter Bandwidth
Fixed Mode
(SWEN = VSS)
Note 6
VSEL0 = VDD. VSEL1 = VDD
V SEL0 = VSS. V SEL1 = VDD
8000
4000
2000
1000
Hz
Hz
Hz
Hz
V
SEL0 = VDD. V SEL1 = VSS
V SEL0 = VSS. V SEL1 = VSS
M9999-070808
July 2008
4
MICREL [ MICREL SEMICONDUCTOR ]
